Self balancing scooter is a new style high-tech outdoor sports product which uses space attitude control principle, fuzzy algorithm and gyroscope system to realize self-balance in front and back direction, users could manage driving operations of forward going, speeding up and down and brake through the cooperation of the body slightly forward and backward leaning to change the body focus and the handlebar holding. The left and right direction balance could be realized through the body twist to change the body focus which is similar to a bicycle. Unicycle with the green environmental protection features is a good product for recreational and outdoor sports.